Automatic window-controlling attachment.



No. 837,875. PATENTBD DEC. 4, 1906.

J. B. MoKEOWN.

AUTOMATIC WINDOW CONTROLLING ATTACHMENT.

' APPLICATION FILED FEB. 14, 1906.

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UNITED STATES PATENT OFFICE.

JOSEPH B. MOKEOWN, OF UNION HILL, NEW JERSEY.

Specification of Letters Patent.

Patented Dec. 4, 1906,

Application filed February 14, 1906. Serial No. 301,005.

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Be it known that I, JOSEPH B. MoKEowN, a citizen of the United States,and a resident of Union Hill, in the county of Hudson and. State of NewJersey, have invented a new and Improved Automatic Window ControllingAttachment, of which the following is a full, clear, and exactdescription.

The invention relates more particularly to windows in factories, stores,and other buildings; and its object is to provide a new and improvedautomatic window-controlling attachment arranged to allow moving thewindow-sash into an open position and holding it therein for ventilatingand like purposes and to permit the sash to move into a closed positionin case of a fire to shut off the draft, and thus prevent the fire fromspreading.

The invention consists of novel features and parts and combinations ofthe same, which will be more fully described hereinafter and thenpointed out in the claims.

A practical embodiment of the invention is represented in theaccompanying drawings, forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a front elevation of the improvement as applied to a windowhaving its sash mounted to swing on .a horizontally-disposed axis. Fig.2 is a transverse section of the same. Fig. 3 is a sectional frontelevation of the improvement applied to a window having a sash mountedto swing on a vertical axis. Fig. 4 is a sectional plan View of thesame, and Fig. 5 is an enlarged face view of the fusible link.

The window-sash A (shown in Figs. 1 and 2) has its trunnions B Bdisposed horizontally and j ournaled in suitable bearings on the sidesof the window-frame C. On the trunnion B is formed or secured afriction-wheel D, carrying a weight E, employed for swinging the opensash back into a closed position. The friction-wheel D forms part of aretaining device for allowing the sash to be moved into an open positionand holding it therein, and this retaining device is preferably in theform of a brake and is provided with a brakeblock F in peripheralengagement at its inner end with the wheel D. The brake-block F ismounted to slide in a casing G, attached to the window-frame C, and thesaid block is pressed on by the inner end of a spring H, arranged withinthe casing G and resting with its outer end on the cover G hinged on thecasing G. The free end of the cover G is provided with a pin G engagedby one end of a fusible link I, held at its other end on a pin J,attached to the casing G. The link I is capable of melting or fusing ata low temperature, but normally serves to hold the cover G closedagainst the tension of the spring H, which latter presses thebrake-block F inwardly against the brake-wheel D and with sufficientforce to normally hold the windowsash A in an open position. N ow incase of a fire the link I melts, and in doing so the cover G isreleased, allowing the spring H to open the cover and open outcompletely, thereby removing its pressure from the brake-block F, andthus releasing the latter. The window-sash is now free to swing intoclosed position to shut off the draft from the fire, and thus preventquick spreading of the same.

In the modified form shown in Figs. 3 and 4 the sash A is providedwithvertically-disposed trunnions B journaled in the top cross-bar andthe sill of the window-casing C, and on the upper trunnion B is secureda wheel D, forming a pulley, on which winds and unwinds a rope E,extending over a pulley E and carrying a weight E for moving the sashfrom an open into a closed position.

The wheel D is frictionall'y engaged at its peripheral face with abrake-block F, slidable in the casing G and pressed on by a spring H,resting on the hinged cover G normally locked against the pressure ofthe spring H by the fusible link I, held on the casing-pin J andengaging the pin G on the cover G When the link I melts or fuses in caseof a fire, then the brake-block F is released from the pressure of thespring H to allow the weight E to move the window-sash A shut. Thecontacting surfaces of the brake-wheels D and D and their brake-blocks Fand F may be roughened or lined to increase the friction between thesaid surfaces.

The device shown and described is very simple and durable inconstruction, is composed of but few parts, and is not liable to geteasily out of order.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. A controlling attachment for a self-closingwindow-sash, comprising a brake member attached to the window-sash, asecond brake member mounted to slide toward and from the first-mentionedbrake member, a spring resting at one end against the slidable brakemember, a hinged device engaging the other end of the spring, and afusible link for holding the said hinged device against the tension ofthe spring.

2. A controlling attachment for windows, com rising a brake memberattached to the win ow-sash, a second brake member movable toward andfrom the first-mentioned brake member, a spring resting at one endagainst the said second brake member and adapted to press the saidmember against the first brake member, a hinged device engaging theother end of the spring for holding the same under tension, a fusiblelocking and releasing means for normally holding the hinged device inengagement with the spring, and means for automatically moving the sashto a closed position, when the said fusible means is melted.

3. The combination with a pivoted window-sash, of a brake member on thepivot of said window-sash, a brake-block normally in engagement withsaid brake member, a

spring pressing the said block, a device mounted to swing and engagingthe said spring, a fusible locking and releasing device for holding thesaid device in engagement with the spring, and a weight for turning thebrake member and moving the window-sash, when the brake-block isreleased from the pressure of the spring.

4. The combination with a pivoted window-sash arranged'to swingautomatically into a closed position, of a wheel on the pivot of thesaid windowsash, a block in peripheral engagement with the said wheel, aspring pressing the said block, a casing having a hinged cover whichrests on an end of the said spring, and a fusible link for locking thesaid casing-cover against the tension of the said spring.

5. A controlling attachment for a self-closing window-sash, comprisingbrake members, of which one is attached to the window-sash, a casinghaving a hinged cover and in which the other brake member is mounted toslide, a spring in the said casing and resting with one end on the saidslidable brake member and with its other end on the said cover, and afusible link for holding the said cover closed against the tension ofthe spring.

6. A controlling attachment for a pivoted window-sash comprisin a brakemember rigidly connected with the pivot of the win dow-sash,a secondbrake member comprising a block mounted to slide, a spring for normallyholding said block in peripheral engagement with the first-mentionedbrake member, a movable device adapted to engage the said spring,fusible means for normally holding the said device against the tensionof the spring, and a weight connected with the brake member on the pivotof the windowsash, for the purpose set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOSEPH B. MOKEOWN.

Witnesses:

THEO. G. HOSTER, EVERARD B. MARSHALL.

